GNU bug report logs - #76132
Clojure-style auto-gensyms for macros

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From: Tassilo Horn <tsdh <at> gnu.org>
To: Thierry Volpiatto <thievol <at> posteo.net>
Cc: 76132 <at> debbugs.gnu.org
Subject: bug#76132: Clojure-style auto-gensyms for macros
Date: Sat, 08 Feb 2025 08:15:55 +0100

Thierry Volpiatto <thievol <at> posteo.net> writes:

Hi Thierry,

>> you can also write much more concise and convenient
>>
>> (defmacro foo [x y]
>>   `(let [xv# ,x
>>          yv# ,y]
>>      (do-stuff (* xv# xv#) (* yv# yv#))))
>
> Don't we have cl-with-gensyms which is very convenient as well?

Ah, I didn't know.  Well, cl-with-gensyms is basically just a let which
binds the given names to new gensyms.  Then you have to use them as you
did before, e.g., splice them in the expansion `(... ,v1 ,v2).  My
variant infers and replaces the symbols itself by a naming convention
("ending with $" in my example file).

Bye,
Tassilo

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